Find the value for β that makes cosβ = sin15 true.
1 answer:
Answer:
Step-by-step explanation:
This is an equation for which you need to solve for the value of the missing angle beta.
sin(15) has a decimal answer that you will find on your calculator. Finding that value makes this equation then
cosβ = .2588190451
Now use the 2nd button and then the cos button to find the angle that has a cos of that decimal. When you hit 2nd then cos, you should see this on your screen:
cos⁻¹ (
After that open parenthesis, enter you decimal then hit the enter button to find the angle. You should get 75, which is Choice B.
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F = 1.8C + 32
С = -10 ⇒ F = 1.8·(-10) + 32 = 14 ⇒ (-10, 14)
С = 0 ⇒ F = 1.8·(0) + 32 = 32 ⇒ (0, 32)
С = 10 ⇒ F = 1.8·(10) + 32 = 50 ⇒ (10, 50)
С = 20 ⇒ F = 1.8·(20) + 32 = 68 ⇒ (20, 68)
С = -10 ⇒ F = 1.8·(-10) + 32 = 14 ⇒ (-10, 14)
С = 0 ⇒ F = 1.8·(0) + 32 = 32 ⇒ (0, 32)
С = 10 ⇒ F = 1.8·(10) + 32 = 50 ⇒ (10, 50)
С = 20 ⇒ F = 1.8·(20) + 32 = 68 ⇒ (20, 68)